Science
Mechanism of Action
It forms a thin, flexible, hydrophobic film on skin, improving product water resistance and providing a smooth texture. It also functions as a suspension agent for pigments and UV filters.
Research
Clinical Evidence
High confidence1-5%
Key findings
- 01 In a human repeated insult patch test (HRIPT) on 47 subjects, a 25% aqueous dilution of a closely related Acrylates Copolymer was found to be non-irritating and non-sensitizing.
- 02 Clinical testing confirmed a 30% solids mixture to be a non-irritant and non-sensitizer.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Supplied as a hydrophobic carboxylated copolymer, it requires neutralization (e.g., with TEA or KOH) to become water-soluble and function as a thickener. It exhibits good stability across wide temperatures and resistance to shear.
Conflicts
- Cationic ingredients (due to its anionic nature)
- Strong oxidants
- Low pH environments (below 6.3, may cause precipitation or loss of viscosity)
Safety
Safety Profile
The CIR Expert Panel deemed it safe for cosmetic use, provided it's formulated to be non-irritating. While typical use is 1-5%, safety data supports concentrations up to 50%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A versatile film-former and rheology modifier, offering enhanced water resistance and product longevity with low irritation risk.
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References
Sources